RACH – Random access channel
What is RACH? RACH (Random Access Channel) is a shared uplink channel used by UEs to initiate communication with the base station. It is the
Radio Interface
The radio interface is the wireless connection between two points, encompassing all necessary functionality to maintain this connection. In cellular systems, the interface between the
Radio Network Controller
The Radio Network Controller (RNC) is a key component of the UMTS Radio Network System (RNS) that manages multiple Node Bs. Its responsibilities encompass radio
RAN – Radio access network
The part of the telecommunications network that connects user equipment to other parts of a mobile network via a radio connection. Connects user equipment to
RAN (Radio Access Network)
What is RAN? The Radio Access Network (RAN) is the component of a mobile network that connects User Equipment (UE) to the Core Network via
RAT – Radio access technology
What is RAT? RAT (Radio Access Technology) refers to the underlying physical connection method used by a radio-based communication network. Each generation of mobile technology
REC (Radio Equipment Controller)
What is REC? REC (Radio Equipment Controller) is the virtual or physical component of a base station that performs digital baseband control of the radio
Received Signal Level
The signal strength at a receiver’s input is typically measured in decibels (dB) relative to 1 milliwatt (mW), denoted as 0 dBm.
RRH – Remote radio head
The component of a base station responsible for converting the digital signal into an analog signal for transmission. The remote radio head is usually located
RRH (Remote Radio Head)
What is RRH? An RRH (Remote Radio Head) is a radio transceiver unit located at or near the antenna (typically on the tower top or
RRM – Radio resource management
What is RRM? RRM (Radio Resource Management) encompasses the algorithms and procedures used to manage radio resources in a mobile network — including transmit power
RU (Radio Unit)
What is RU? The RU (Radio Unit) is the component of a disaggregated 5G base station that handles the lower physical layer processing and RF
Rx – Receive
What is Rx? Rx (Receive) in wireless communications refers to the process of capturing incoming radio frequency signals and converting them into usable data. The
